/**
 * Copyright 2012-2019 The Feign Authors
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package istio.fake.base.codec;

import static java.lang.String.format;

import java.io.IOException;
import java.lang.reflect.Type;

import istio.fake.FakeException;
import istio.fake.util.Util;
import istio.fake.base.Response;

public class StringDecoder implements Decoder {

    @Override
    public Object decode(Response response, Type type) throws IOException {
        Response.Body body = response.body();
        if (body == null) {
            return null;
        }
        if (String.class.equals(type)) {
            return Util.toString(body.asReader());
        }
        throw new FakeException(
                format("status:%d, %s is not a type supported by this decoder.", response.status(), type));
    }
}
